Fix some compiler warnings.
Merge branch 'master' of github.com:lksoft/MGTemplateEngine

# By Matt Legend Gemmell (3) and others
* 'master' of github.com:lksoft/MGTemplateEngine:
  Fix a number size in a printf.
  fixed some warnings added NSURL variant of processTemplateInFileAt...
  MGTemplateEngine will now build for iPhone; thanks to Phil Larson.
  Fixed bug where empty arrays passed to a "for x in y" marker would cause no more output to occur for the rest of the template.
  MGTemplateEngine re-import.